If you're of European descent you can Muck farmers got wiped out by disease and were replaced by downwardly mobile children of nobility - who had better long-term planning genes Liberalism is burning through those genes at increasing rates https://twitter.com/JZmirak/status/1023743782859227138 …
That's true but much narrower - anyone who lived ~60 generations ago whose line didn't die out is going to be ancestor of all members of that group The wider finding is that *most genes* came from nobility / the wealthy - meaning the things that influence behavior in descendants